| 摘要 |
<p>PURPOSE:To reduce the number of electromagnetic contactors by connecting the brake resistors of respective motors through the contactors partly commonly, and connecting the motors through diodes to a rectifier. CONSTITUTION:Brake resistors 11a, 11b are connected in parallel with left and right motors 2a, 2b, respectively, and part of the resistors 11a, 11b are commonly connected through a first electromagnetic contactor 12a. The motors 2a, 2b are connected through diodes 13a, 13b to a rectifier 8. A main electromagnetic contactor 14 is turned ON, and the contactors 12a and second-fourth contactors 12b-12d are selectively turned ON to drive the motors 2a, 2b. Thus, the number of the contactors can be reduced.</p> |
